CN210569785U - Heat exchange device of drying and conveying equipment - Google Patents
Heat exchange device of drying and conveying equipment Download PDFInfo
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- CN210569785U CN210569785U CN201920674877.7U CN201920674877U CN210569785U CN 210569785 U CN210569785 U CN 210569785U CN 201920674877 U CN201920674877 U CN 201920674877U CN 210569785 U CN210569785 U CN 210569785U
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Abstract
A heat exchange device of drying conveying equipment comprises a furnace body and a conveying belt for conveying products, wherein a heat transfer heating area, an energy heating area and a heat transfer cooling area which are communicated with each other are sequentially arranged in the furnace body; the two ends of the furnace body are respectively provided with an air outlet and an air suction inlet; the heat transfer heating area is communicated with the air outlet, the heat transfer cooling area is communicated with the air inlet, one side of the furnace body is provided with a heat exchange assembly, and the heat exchange assembly comprises more than one blower and an adjusting member for adjusting the running speed of the blower; the heat transfer heating area and the heat transfer cooling area are respectively provided with an air blower and an adjusting member for changing air flow, so that heat in the heat transfer cooling area is sequentially conveyed to the energy source heating area and the heat transfer heating area, and a heat exchange pipeline is formed in the furnace body. The utility model discloses an install air-blower and adjusting member that are used for changing air mass flow respectively in the heat transfer zone of heating and heat transfer cooling space to the realization changes the functioning speed of air-blower according to the waste heat of product.
Description
Technical Field
The utility model relates to a stoving conveying equipment specifically is a stoving conveying equipment's heat exchange device.
Background
Chinese patent document No. CN107772513A discloses a novel belt dryer in 2018.03.09, which includes a feeding device, a first drying chamber, a second drying chamber, an air duct, a third drying chamber, a fan, a transition chamber, a cooling chamber, a motor reducer, a balance weight, a drive chain, a drive sprocket, a heat insulation layer, a chain conveyor belt, a track, a wind dispersing plate, a floating scraper discharging device, a cooling air extraction chamber, a heat exchange chamber, a driven sprocket, and a stock bin bottom plate, wherein the material is fed by the conveyor, enters the first, second and third drying chambers along with the movement of the mesh belt, then enters the cooling chamber, and then is discharged; the damp and hot air discharged by the heated materials is pumped out of the room by a fan; the material is heated by hot air of a plurality of drying chambers, the required condition continues to enter the cooling chamber, and the fan blows air at normal temperature into the cooling chamber to cool the material. The structure can not automatically adjust the rotating speed of the fan according to the temperature of the drying chamber, and is not energy-saving. And thus, is in need of further improvement.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a rational in infrastructure, energy-conservation subtracts to consume, the installation is nimble, effectively solves the problem that fan can not automatically regulated functioning speed among the current drying equipment, improves the heat exchange device of the stoving conveying equipment of energy-conserving effect to overcome the weak point among the prior art.
The heat exchange device of the drying conveying equipment designed according to the purpose comprises a furnace body and a conveyor belt for conveying products in a reciprocating manner, wherein a heat transfer heating area, an energy heating area and a heat transfer cooling area which are communicated with each other are sequentially arranged in the furnace body; the two ends of the furnace body are respectively provided with an air outlet and an air suction inlet; the heat transfer heating area is communicated with the air outlet, the heat transfer cooling area is communicated with the air inlet, one side of the furnace body is provided with a heat exchange assembly, and the heat exchange assembly comprises more than one blower and an adjusting member for adjusting the running speed of the blower; the heat transfer heating area and the heat transfer cooling area are respectively provided with an air blower and an adjusting member for changing air flow, so that heat in the heat transfer cooling area is sequentially conveyed to the energy source heating area and the heat transfer heating area, and a heat exchange pipeline is formed in the furnace body.
In the production process, the product sequentially enters a heat transfer heating area, an energy source heating area and a heat transfer cooling area through a conveyor belt; after the normal temperature air enters the heat transfer cooling zone through the air suction inlet, the normal temperature air absorbs the waste heat of the product and the conveyor belt to gradually increase the temperature, the normal temperature air forms hot air after the temperature increase, and the hot air sequentially enters the energy heating zone and the heat transfer heating zone through the air blower; at the moment, the hot air in the heat transfer heating area releases heat energy, the heat energy is transferred to the product, the product in the heat transfer heating area can be effectively preheated, and the product in the heat transfer heating area is gradually heated; after heat exchange, products in the heat transfer cooling area can be effectively cooled, meanwhile, due to flowing and replacing of air, the moisture removal speed is accelerated, and the drying efficiency is remarkably improved; in addition, the heat transfer heating area and the heat transfer cooling area are respectively provided with an adjusting component, the adjusting component comprises a thermistor and a frequency converter, the thermistor senses the temperature of the heat transfer cooling area and the heat transfer heating area, the frequency converter is controlled by a temperature comparison circuit formed by the thermistor, and the running speed of the air blower is controlled by the frequency converter, so that the running speed of the air blower is automatically adjusted according to the waste heat of a product, the air quantity is changed, the heat exchange efficiency is optimized, the energy consumption is reduced, the heat emission is reduced, and the energy-saving effect reaches 50% -70%.
The energy heating zone is equipped with and is used for promoting the rate of heating to and the air-blower of stable heating temperature, keep or promote the temperature to all material through the energy heating zone to the realization.
The energy heating area is connected with an electric heating device or a gas pipeline so that the energy heating area is heated by adopting electric heating or the gas pipeline.
The regulating member includes thermistors disposed in the heat transfer heating zone and the heat transfer cooling zone to sense temperatures of the heat transfer heating zone and the heat transfer cooling zone.
The regulating member further comprises a frequency converter, wherein the thermistors of the heat transfer heating area and the heat transfer cooling area form a temperature comparison circuit, and the temperature comparison circuit and the frequency converter are electrically connected with each other.
The blowers of the heat transfer heating area and the heat transfer cooling area are respectively and electrically connected with the frequency converter; the frequency converter controls the rotating speed of the blower through the resistance value change of the thermistor.
Or the heat transfer heating area and the heat transfer cooling area are respectively connected with a pipeline, so that the heat in the heat transfer cooling area enters the heat transfer heating area through the pipeline.
A hot air transfer pipeline is arranged on one side of the furnace body, and the heat transfer heating area and the heat transfer cooling area are respectively communicated with the hot air transfer pipeline, so that heat in the heat transfer cooling area is transferred into the heat transfer heating area through the hot air transfer pipeline; the heat transfer cooling area is provided with a thermistor and an air blower, and the heat transfer heating area is provided with an air blower.
And a control box is also arranged on one side of the furnace body.
And airflow dispersion mesh plates are respectively arranged above the heat transfer heating area, the energy heating area and the heat transfer cooling area of the furnace body.
The furnace body is provided with the heat preservation insulating layer, and furnace body one side is provided with the machine support. The machine support supports the furnace body.
In the production process of the drying and conveying equipment, after the normal temperature air enters the heat transfer cooling area through the air suction inlet, the normal temperature air forms hot air through absorbing the waste heat of the product and the conveying belt, and the hot air blows towards the direction that the product enters the furnace, so that the linear temperature rise and fall are realized, and the utilization rate is high; the design automatically controls the heat exchange quantity according to the temperature (automatically controls the running speed of the blower according to the temperature), and improves the energy-saving effect; the conveying mode is a belt, a mesh belt or a chain, heat energy of the conveying belt is subjected to heat exchange, and the product cannot lose heat energy due to conveying transition.
The heat exchange principle of the design is as follows: the heat energy of the dried product is transferred to the product to be baked, so that the temperature of the object before entering the furnace is improved, the energy consumption is reduced, the temperature of the product discharged from the furnace is reduced, and the heat energy emission is reduced. The design is suitable for industries such as hardware and electrical appliances, food and chemical industry, grain crops, wood papermaking and the like.
Drawings
Fig. 1 is a schematic view of a three-dimensional structure of a drying and conveying apparatus according to a first embodiment of the present invention.
Fig. 2 is a schematic structural view of the first embodiment of the present invention, which forms a heat exchange pipeline in the oven body of the drying and conveying equipment.
Fig. 3 is the schematic view of the planar structure of the drying and conveying equipment according to the first embodiment of the present invention.
Fig. 4 is a schematic diagram of a control circuit principle of the drying and conveying device according to the first embodiment of the present invention.
Fig. 5 is a schematic view of a working flow of the drying and conveying apparatus according to the first embodiment of the present invention.
Fig. 6 is a schematic view of the temperature change of the product and air in each region of the oven body of the first embodiment of the drying and conveying device.
Fig. 7 is a schematic view of a three-dimensional structure of a drying and conveying apparatus according to a second embodiment of the present invention.
Fig. 8 is a schematic structural view of a furnace body of a drying and conveying device of a second embodiment of the present invention, which is provided with a hot air transfer pipeline.
Fig. 9 is a schematic view of a planar structure of a drying and conveying apparatus according to a second embodiment of the present invention.
Fig. 10 is a schematic diagram of a control circuit of a drying and conveying apparatus according to a second embodiment of the present invention.
Fig. 11 is a schematic view of a work flow of the drying and conveying apparatus according to the second embodiment of the present invention.
Fig. 12 is a schematic view showing the temperature change of the product and air in each region of the oven body of the drying and conveying equipment according to the second embodiment of the present invention.
In the figure, 1 is a furnace body, 2 is a conveyor belt, 3 is a heat transfer heating zone, 4 is an energy heating zone, 5 is a heat transfer cooling zone, 6 is an air blower, 7 is a thermistor, 8 is a frequency converter, 9 is a hot air transfer pipeline, 10 is a control box, 11 is an airflow dispersion mesh plate, 12 is a heat preservation and insulation layer, 13 is a machine support, 14 is a product, 15, 16, 19 and 21 are resistors, 17 and 20 are capacitors, and 18 is a triode.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and examples.
First embodiment
Referring to fig. 1-3, a heat exchange device of a drying and conveying apparatus comprises a furnace body 1 and a conveyor belt 2 for reciprocating and conveying a product 14, wherein a heat transfer heating area 3, an energy heating area 4 and a heat transfer cooling area 5 which are communicated with each other are sequentially arranged in the furnace body 1; the two ends of the furnace body 1 are respectively provided with an air outlet and an air suction inlet; the heat transfer heating area 3 is communicated with an air outlet, the heat transfer cooling area 5 is communicated with an air inlet, one side of the furnace body 1 is provided with a heat exchange assembly, and the heat exchange assembly comprises more than one blower 6 and an adjusting component for adjusting the running speed of the blower 6; the heat transfer heating area 3 and the heat transfer cooling area 5 are respectively provided with an air blower 6 and a regulating member for changing air flow, so that the heat in the heat transfer cooling area 5 is sequentially transferred to the energy heating area 4 and the heat transfer heating area 3, and a heat exchange pipeline is formed in the furnace body 1. The air flow direction of the furnace body 1 is shown by the arrow in fig. 2.
The energy heating zone 4 is equipped with a blower 6 for raising the heating speed and stabilizing the heating temperature.
The energy heating area 4 is connected with an electric heating device or a gas pipeline, so that the energy heating area 4 is heated by adopting electric heating or gas pipeline.
The regulation member includes a thermistor 7, and the thermistor 7 is disposed in the heat transfer heating zone 3 and the heat transfer cooling zone 5 to sense the temperatures of the heat transfer heating zone 3 and the heat transfer cooling zone 5.
The regulating component further comprises a frequency converter 8, the thermistor 7 of the heat transfer heating area 3 and the heat transfer cooling area 5 form a temperature comparison circuit, and the temperature comparison circuit and the frequency converter 8 are electrically connected with each other.
The blowers 6 of the heat transfer heating area 3 and the heat transfer cooling area 5 are respectively and electrically connected with the frequency converter 8; the frequency converter 8 controls the rotating speed of the blower 6 through the resistance value change of the thermistor 7.
A control box 10 is also arranged on one side of the furnace body 1.
An airflow dispersion mesh plate 11 is respectively arranged above the heat transfer heating area 3, the energy heating area 4 and the heat transfer cooling area 5 of the furnace body 1.
The furnace body 1 is provided with a heat preservation and insulation layer 12, and one side of the furnace body 1 is provided with a machine support 13.
Referring to fig. 4, two thermistors 7 are provided, one thermistor 7 is provided in the heat transfer heating zone 3, and one end of the thermistor is connected with a +10V power supply; another thermistor 7 is arranged in the heat transfer cooling area 5, and one end of the thermistor is connected with GND (ground); the other end of the thermistor 7 is electrically connected with the resistor 15 and the capacitor 17; the other end of the resistor 15 is connected with a triode 18 (base), and the other end of the capacitor 17 is connected with GND (ground); one end of the resistor 16 is connected with a +10V power supply, the other end of the resistor is electrically connected with the triode 18 (collector), the capacitor 20 and the VCI (virtual channel in a virtual electrical path), and the other end of the capacitor 20 is connected with GND (ground); the triode 18 (emitter) is connected with the resistor 19, and the other end of the resistor 19 is connected with GND (ground), so that a temperature comparison circuit consisting of the thermistor 7 is formed; the +10V, VCI and GND of the circuit are connected with the control input of the frequency converter 8, the comparison circuit controls the frequency converter 8, and the frequency converter 8 further controls the blower 6.
Referring to fig. 5, the working principle is as follows: the product 14 to be heated is conveyed by the conveyor belt 2, the conveyor belt 2 and the product 14 absorb air heat energy through the heat transfer heating area 3, gradually rise to the temperature close to the energy heating area 4, then sequentially enter the energy heating area 4 to continue heating or keep the temperature, finally enter the heat transfer cooling area 5 to release heat to the air, gradually cool to the temperature close to the normal temperature, and then output, and the product heat processing is completed.
Normal temperature air enters the heat transfer cooling area 5 through the air suction inlet, moves towards the entering direction of the conveyor belt 2 under the action of the air blower 6, absorbs the waste heat of the conveyor belt 2 and the products 14, gradually rises to the temperature close to the energy heating area 4, enters the energy heating area 4 in sequence to continue heating or keep the temperature, finally enters the heat transfer heating area 3 to release heat to the conveyor belt 2 and the products 14, and is gradually cooled to the temperature close to the normal temperature and then is discharged through the air discharge outlet.
The temperature comparison circuit of the blower 6, which is composed of the thermistor 7, automatically adjusts the running speed according to the residual heat of the conveyor belt 2 and the products 14, so that an air flow equivalent to the total mass of the moving distance of the conveyor belt 2 and the products 14 in unit time is formed, the heat energy exchange of the air and the productivity approximately equal to each other is kept, the purpose of fully utilizing the heat energy is achieved, and energy conservation and emission reduction are realized.
The product temperature changes of the heat transfer heating zone 3, the energy source heating zone 4 and the heat transfer cooling zone 5 are shown in fig. 7.
Second embodiment
Referring to fig. 7 to 9, a heat exchange device of a drying conveyor apparatus is different from the first embodiment in that: a hot air transfer pipeline 9 is arranged on one side of the furnace body 1, and the heat transfer heating area 3 and the heat transfer cooling area 5 are respectively communicated with the hot air transfer pipeline 9, so that heat in the heat transfer cooling area 5 is conveyed into the heat transfer heating area 3 through the hot air transfer pipeline 9; the heat transfer cooling zone 5 is provided with a thermistor 7 and an air blower 6, and the heat transfer heating zone 3 is provided with an air blower 6. The air flow direction of the furnace body 1 is shown by the arrow in fig. 8.
Referring to fig. 10, the thermistor 7 is disposed in the heat transfer cooling area 5, one end of the thermistor is connected to GND (ground), and the other end of the thermistor is electrically connected to the resistor 15, the resistor 21, and the capacitor 17; the other end of the resistor 21 is connected with a +10V power supply, the other end of the resistor 15 is connected with a triode 18 (base), and the other end of the capacitor 17 is connected with GND (ground); one end of the resistor 16 is connected with a +10V power supply, the other end of the resistor is electrically connected with the triode 18 (collector), the capacitor 20 and the VCI (virtual channel in a virtual electrical path), and the other end of the capacitor 20 is connected with GND (ground); the triode 18 (emitter) is connected with the resistor 19, and the other end of the resistor 19 is connected with GND (ground), so that a temperature comparison circuit consisting of the thermistor 7 is formed; the +10V, VCI and GND of the circuit are connected with the control input of the frequency converter 8, the comparison circuit controls the frequency converter 8, and the frequency converter 8 further controls the blower 6.
Referring to fig. 11, the working principle is: the product 14 to be heated is conveyed by the conveyor belt 2, the conveyor belt 2 and the product 14 absorb the heat energy of the air through the heat transfer heating area 3, gradually increase the temperature to the highest temperature close to the heat transfer cooling area 5, then sequentially enter the energy heating area 4 to continuously heat or keep the temperature, finally enter the heat transfer cooling area 5 to release the heat energy to the air, gradually decrease the temperature to the normal temperature and then output, and the thermal processing of the product is finished.
Normal temperature air enters the heat transfer cooling zone 5 through the air suction inlet, moves towards the entering direction of the conveyor belt 2 under the action of the air blower 6, absorbs the waste heat of the conveyor belt 2 and products 14, is gradually heated to the temperature close to the energy heating zone 4, is conveyed by the air blower 6 through the hot air transfer pipeline 9 to enter the heat transfer heating zone 3 in sequence, releases heat to the conveyor belt 2 and the products 14, and is gradually cooled to the temperature close to the normal temperature and then is discharged through the air discharge outlet.
The product temperature changes of the heat transfer heating zone 3, the energy source heating zone 4 and the heat transfer cooling zone 5 are shown in fig. 12.
Other parts not described are the same as those of the first embodiment, and are not described in detail here.
The foregoing is a preferred embodiment of the present invention showing and describing the basic principles, main features and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are intended to illustrate the principles of the invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention, and the scope of the invention is to be protected. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. A heat exchange device of drying conveying equipment comprises a furnace body (1) and a conveyor belt (2) for conveying products (14) in a reciprocating manner, and is characterized in that a heat transfer heating area (3), an energy heating area (4) and a heat transfer cooling area (5) which are communicated with each other are sequentially arranged in the furnace body (1); the two ends of the furnace body (1) are respectively provided with an air outlet and an air suction inlet; the heat transfer heating area (3) is communicated with the air outlet, the heat transfer cooling area (5) is communicated with the air inlet, one side of the furnace body (1) is provided with a heat exchange assembly, and the heat exchange assembly comprises more than one blower (6) and an adjusting member for adjusting the running speed of the blower (6); the heat transfer heating area (3) and the heat transfer cooling area (5) are respectively provided with an air blower (6) and a regulating member for changing air flow, so that heat in the heat transfer cooling area (5) is sequentially conveyed to the energy heating area (4) and the heat transfer heating area (3), and a heat exchange pipeline is formed in the furnace body (1).
2. The heat exchange device of the drying and conveying equipment as claimed in claim 1, wherein the energy source heating area (4) is provided with a blower (6) for increasing the heating speed and stabilizing the heating temperature.
3. The heat exchange device of the drying and conveying equipment as claimed in claim 2, wherein the energy source heating area (4) is connected with an electric heating device or a gas pipeline, so that the energy source heating area (4) is heated by adopting electric heating or gas pipeline.
4. The heat exchange device of the drying conveyor apparatus as claimed in claim 1, wherein the regulating means comprises a thermistor (7), and the thermistor (7) is disposed in the heat transfer heating zone (3) and the heat transfer cooling zone (5) to sense the temperatures of the heat transfer heating zone (3) and the heat transfer cooling zone (5).
5. The heat exchanger of drying and conveying apparatus as claimed in claim 4, wherein said adjusting means further comprises a frequency converter (8), and the thermistors (7) of the heat transfer heating zone (3) and the heat transfer cooling zone (5) form a temperature comparison circuit, and the temperature comparison circuit and the frequency converter (8) are electrically connected with each other.
6. The heat exchange device of the drying and conveying equipment as claimed in claim 5, wherein the blowers (6) of the heat transfer heating area (3) and the heat transfer cooling area (5) are respectively and electrically connected with the frequency converter (8); the frequency converter (8) controls the rotating speed of the blower (6) through the resistance value change of the thermistor (7).
7. The heat exchange device of the drying and conveying equipment according to claim 1, wherein a hot air transfer pipeline (9) is arranged on one side of the furnace body (1), and the heat transfer heating area (3) and the transfer cooling area (5) are respectively communicated with the hot air transfer pipeline (9) so that the heat in the transfer cooling area (5) is conveyed into the heat transfer heating area (3) through the hot air transfer pipeline (9); the heat transfer cooling area (5) is provided with a thermistor (7) and an air blower (6), and the heat transfer heating area (3) is provided with the air blower (6).
8. The heat exchange device of the drying and conveying equipment according to any one of the claims 1 to 7, characterized in that a control box (10) is further arranged on one side of the furnace body (1).
9. The heat exchange device of the drying and conveying equipment according to claim 8, characterized in that an airflow dispersing mesh plate (11) is respectively arranged above the heat transfer heating area (3), the energy source heating area (4) and the heat transfer cooling area (5) of the furnace body (1).
10. The heat exchange device of the drying and conveying equipment according to the claim 9 is characterized in that the furnace body (1) is provided with a heat insulation layer (12), and a machine support (13) is arranged on one side of the furnace body (1).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920674877.7U CN210569785U (en) | 2019-05-10 | 2019-05-10 | Heat exchange device of drying and conveying equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920674877.7U CN210569785U (en) | 2019-05-10 | 2019-05-10 | Heat exchange device of drying and conveying equipment |
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| CN210569785U true CN210569785U (en) | 2020-05-19 |
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| CN201920674877.7U Active CN210569785U (en) | 2019-05-10 | 2019-05-10 | Heat exchange device of drying and conveying equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115682692A (en) * | 2022-11-04 | 2023-02-03 | 成都云图控股股份有限公司 | Integrative device of stoving cooling |
-
2019
- 2019-05-10 CN CN201920674877.7U patent/CN210569785U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115682692A (en) * | 2022-11-04 | 2023-02-03 | 成都云图控股股份有限公司 | Integrative device of stoving cooling |
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